Sensitivity of Secondary Gamma-Ray Dose to Angular Distribution of Gamma Rays from Neutron Inelastic Scattering

1970 ◽  
Vol 41 (1) ◽  
pp. 147-148 ◽  
Author(s):  
E. A. Straker
Keyword(s):  
Angular Distribution ◽  
Inelastic Scattering ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Neutron Inelastic Scattering

The $\gamma$ γ -ray angular distribution in fast neutron inelastic scattering from iron

2018 ◽  
Vol 54 (4) ◽  
Author(s):  
Roland Beyer ◽  
Mirco Dietz ◽  
Daniel Bemmerer ◽  
Arnd R. Junghans ◽  
Toni Kögler ◽  
...  
Keyword(s):  
Angular Distribution ◽  
Inelastic Scattering ◽  
Fast Neutron ◽  
Neutron Inelastic Scattering ◽  
Γ Ray

RADIOACTIVITY LOGGING AND ITS FUTURE POTENTIAL

Geophysics ◽  
1960 ◽  
Vol 25 (4) ◽  
pp. 883-890 ◽  
Author(s):  
Edwin S. Mardock
Keyword(s):  
Neutron Activation ◽  
Inelastic Scattering ◽  
Gamma Ray ◽  
Single Component ◽  
Petrophysical Properties ◽  
Neutron Inelastic Scattering ◽  
Future Developments ◽  
The Future ◽  
Future Potential ◽  
Further Development

The quantitative application of radioactivity logs for the estimation of formation petrophysical properties is dependent on certain fundamental factors which are discussed. It is difficult to avoid “hybrid” combinations of processes; for example neutron‐neutron and neutron‐gamma effects together, however, it is believed that the future of quantitative application of neutron logs depends to a large extent on the development of single component logging processes. Positive location of the sonde within the borehole for all types of logs needs further development. These improvements plus future developments in gamma‐ray spectral logs, neutron‐gamma spectral logs, neutron activation logs, and neutron inelastic scattering logs promise a bright future for radioactivity logging.

Evaluation of the Doppler-Broadening of Gamma-Ray Spectra from Neutron Inelastic Scattering on Light Nuclei

2009 ◽  
Author(s):  
Phillip C. Womble ◽  
Alexander Barzilov ◽  
Ivan Novikov ◽  
Joseph Howard ◽  
Jason Musser ◽  
...  
Keyword(s):  
Inelastic Scattering ◽  
Gamma Ray ◽  
Light Nuclei ◽  
Doppler Broadening ◽  
Neutron Inelastic Scattering

Proton?Capture Gamma Rays from Nitrogen?13

1962 ◽  
Vol 15 (3) ◽  
pp. 443 ◽  
Author(s):  
AW Parker ◽  
GG Shute
Keyword(s):  
Angular Distribution ◽  
Excited State ◽  
Elastic Scattering ◽  
Gamma Rays ◽  
Ground State ◽  
Recent Experiment ◽  
Gamma Ray ◽  
Angular Distributions ◽  
Proton Capture ◽  
Yield Curves

From a recent experiment in this laboratory (Shute et al. 1962) on the elastic scattering of protons from 12C, resonance levels (E13N, J1t) of 13N were obtained at the laboratory bombarding energies (Ep) shown in Table 1. To confirm these results, an investigation of the yield and angular distribution of gamma rays from the reaction 12C(p'YO)13N and 12C(p'Yl)13N was undertaken. Accordingly, the theoretical angular distributions, W(8), for the gamma ray (Yo) to the ground state of 13Na-) and also for the gamma ray (Yl) to the 1st excited state of 13Na+) were evaluated on the assumptions that overlap of levels in 13N is small and lowest order multipoles are involved. As angular distributions are parity insensitive, these were found to be identical for the two gamma rays expected. The simpler of these angular distributions are also shown on the table. The expected angular distributions indicate that 90� is a suitable angle for yield curves.

Gamma Rays from Neutron Inelastic Scattering inB10,F19, andFe56

1960 ◽  
Vol 117 (5) ◽  
pp. 1330-1333 ◽  
Author(s):  
Robert B. Day ◽  
Martin Walt
Keyword(s):  
Inelastic Scattering ◽  
Gamma Rays ◽  
Neutron Inelastic Scattering

Studies of gamma rays from neutron inelastic scattering

1961 ◽  
Vol 12 (3) ◽  
pp. 485-532 ◽  
Author(s):  
David A Lind ◽  
Robert B Day
Keyword(s):  
Inelastic Scattering ◽  
Gamma Rays ◽  
Neutron Inelastic Scattering

scholarly journals Separating astrophysical sources from indirect dark matter signals

2014 ◽  
Vol 112 (40) ◽  
pp. 12272-12277 ◽  
Author(s):  
Jennifer M. Siegal-Gaskins
Keyword(s):  
Dark Matter ◽  
Angular Distribution ◽  
Energy Spectrum ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Dark Matter Annihilation ◽  
Robust Identification ◽  
Analysis Methods ◽  
The Status

Indirect searches for products of dark matter annihilation and decay face the challenge of identifying an uncertain and subdominant signal in the presence of uncertain backgrounds. Two valuable approaches to this problem are (i) using analysis methods which take advantage of different features in the energy spectrum and angular distribution of the signal and backgrounds and (ii) more accurately characterizing backgrounds, which allows for more robust identification of possible signals. These two approaches are complementary and can be significantly strengthened when used together. I review the status of indirect searches with gamma rays using two promising targets, the Inner Galaxy and the isotropic gamma-ray background. For both targets, uncertainties in the properties of backgrounds are a major limitation to the sensitivity of indirect searches. I then highlight approaches which can enhance the sensitivity of indirect searches using these targets.

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